The love lives of the Braverman siblings are getting even more complicated in Season 5 of
"Parenthood."

The latest obstacle to happiness comes in the form of
Sonya Walger ("Lost," "Common Law"), who has taken a recurring role on the NBC drama in the fall. Her character, Meredith, is an architect who is working with contractor Joel (
Sam Jaeger) on a big project.

Her upfront manner -- and the fact that she looks like Sonya Walger -- unnerves Joel's wife, Julia (
Erika Christensen), who begins to see Meredith as a threat to their marriage. Even though Joel, to this point, has been nothing but a loyal partner.